AQA 7517 4.1.1.2: Programming concepts
The free BugBot lessons that teach this point, a robot to try it on, and the past-paper questions that test it.
What it covers
At GCSE you met five data types (F1.8): integer, real, Boolean, character and string, and the three constructs sequence, selection and iteration (F2). A level keeps all of that and asks for more precision. There are more types to know, including ones you build yourself, and the exam expects the exact names for kinds of loop and for the difference between a variable and a constant.
- The types you need to know
- References: two names, one value
- User-defined types
- Declaration, assignment and constants
- Iteration: definite and indefinite
Or do it in the simulator, with tasks that mark themselves
Lessons that teach it
- A1.1 Data types and programming constructs Programming techniques and object-oriented programming
The A level data types, references and user-defined types, constants, and definite and indefinite iteration. - A1.10 Project: the behaviour controller Programming techniques and object-oriented programming
Get past a wall to the dock with prioritised behaviour classes, a controller that aggregates them, and an exception to finish.
Try it on a robot
The task from A1.1 Data types and programming constructs, running here. Change the program and press Run.
The specification is AQA's own document; this page says which of our lessons teach point 4.1.1.2 and is not endorsed by the board.